Method toState

src/common/commontypes/Vector.js:204–238

* @function FeatureVector.prototype.toState * @description 设置新状态。 * @param {string} state - 状态。

(state)

     * @param {string} state - 状态。
     */
    toState(state) {
        if (state === State.UPDATE) {
            switch (this.state) {
                case State.UNKNOWN:
                case State.DELETE:
                    this.state = state;
                    break;
                case State.UPDATE:
                case State.INSERT:
                    break;
            }
        } else if (state === State.INSERT) {
            switch (this.state) {
                case State.UNKNOWN:
                    break;
                default:
                    this.state = state;
                    break;
            }
        } else if (state === State.DELETE) {
            switch (this.state) {
                case State.INSERT:
                    // the feature should be destroyed
                    break;
                case State.DELETE:
                    break;
                case State.UNKNOWN:
                case State.UPDATE:
                    this.state = state;
                    break;
            }
        } else if (state === State.UNKNOWN) {
            this.state = state;
        }
    }
}
/**
 *